const {registerBlockType} = wp.blocks; //Blocks API
const {createElement} = wp.element; //React.createElement
const {__} = wp.i18n; //translation functions
const {InspectorControls} = wp.editor; //Block inspector wrapper

registerBlockType( 'caldera-learn-basic-blocks/post-title', {
	title: __( 'Show a post title' ), // Block title.
	category:  __( 'common' ), //category
	//display the post title
	edit(attributes,setAttributes){
		return createElement('div', {}, [
			createElement( 'div', {}, 'Put Preview here' ),
			createElement( InspectorControls, {}, 'Inspector Controls' )
		] )
	},
	save(){
		return null;//save has to exist. This all we need
	}
});